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Related papers: Evaluating an Embryo Origin for Detached TNOs with…

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The observed physical clustering of the orbits of small bodies in the distant Kuiper Belt (TNOs) has recently prompted the prediction of an additional planet in the outer solar system. Since the initial posing of the hypothesis, the effects…

Earth and Planetary Astrophysics · Physics 2020-11-04 Tali Khain , Juliette Becker , Fred C. Adams

We report the orbital distribution of the trans-neptunian objects (TNOs) discovered during the Canada-France Ecliptic Plane Survey, whose discovery phase ran from early 2003 until early 2007. The follow-up observations started just after…

Dynamical mass estimates for the main asteroid belt and the trans-Neptunian Kuiper belt have been found from their gravitational influence on the motion of planets. Discrete rotating models consisting of moving material points have been…

Earth and Planetary Astrophysics · Physics 2018-11-14 E. V. Pitjeva , N. P. Pitjev

Dawson and Murray-Clay (2012) pointed out that the inner part of the cold population in the Kuiper belt (that with semi major axis a<43.5 AU) has orbital eccentricities significantly smaller than the limit imposed by stability constraints.…

Earth and Planetary Astrophysics · Physics 2015-06-18 A. Morbidelli , H. S. Gaspar , D. Nesvorny

We present the first set of trans-Neptunian objects (TNOs) observed on multiple nights in data taken from the DECam Ecliptic Exploration Project (DEEP). Of these 110 TNOs, 105 do not coincide with previously known TNOs and appear to be new…

It is still an open question how the Solar system is structured beyond 100 au from the Sun. Our understanding of this vast region remains very limited and only recently we have become aware of the existence there of a group of enigmatic…

Earth and Planetary Astrophysics · Physics 2021-07-12 C. de la Fuente Marcos , R. de la Fuente Marcos

The goal of this chapter is to review hypotheses for the origin of the Pluto system in light of observational constraints that have been considerably refined over the 85-year interval between the discovery of Pluto and its exploration by…

Earth and Planetary Astrophysics · Physics 2021-07-20 Robin M. Canup , Kaitlin M. Kratter , Marc Neveu

The transneptunian objects (TNOs) trapped in mean-motion resonances with Neptune were likely emplaced there during planet migration late in the giant-planet formation process. We perform detailed modelling of the resonant objects detected…

Asymmetric debris discs have been found around stars other than the Sun; asymmetries are sometimes attributed to perturbations induced by unseen planets. The presence or absence of asymmetries in our own trans-Neptunian belt remains…

Earth and Planetary Astrophysics · Physics 2022-03-01 C. de la Fuente Marcos , R. de la Fuente Marcos

Today, Pluto and Eris are the largest and most massive Trans-Neptunian Objects respectively. They are believed to be the last remnants of a population of planetesimals that has been reduced by >99% since the time of its formation. This…

Earth and Planetary Astrophysics · Physics 2018-08-01 Andrew Shannon , Rebekah I. Dawson

A relatively massive and moderately eccentric disk of trans-Neptunian objects (TNOs) can effectively counteract apse precession induced by the outer planets, and in the process shepherd highly eccentric members of its population into…

Earth and Planetary Astrophysics · Physics 2019-01-30 Antranik A. Sefilian , Jihad R. Touma

Thousands of small bodies, known as trans-Neptunian objects (TNOs), orbit the Sun beyond Neptune. TNOs are remnants of the planets' formation from a disc of gas and dust, so it is puzzling that they move mostly on eccentric orbits inclined…

Earth and Planetary Astrophysics · Physics 2025-07-10 Susanne Pfalzner , Frank W. Wagner , Paul Gibbon

We present several lines of evidence based on different kinds of observations to conclude that rotational fission has likely occurred for a fraction of the known Trans-Neptunian Objects (TNOs). It is also likely that a number of binary…

Earth and Planetary Astrophysics · Physics 2015-05-30 J. L. Ortiz , A. Thirouin , A. Campo Bagatin , R. Duffard , J. Licandro , D. C. Richardson , P. Santos-Sanz , N. Morales , P. G. Benavidez

Given the large orbital separation and high satellite-to-primary mass ratio of all known Kuiper Belt Object (KBO) binaries, it is important to reassess their stability as bound pairs with respect to several disruptive mechanisms. Besides…

Astrophysics · Physics 2007-05-23 Jean-Marc Petit , Olivier Mousis

Due to the angular momentum exchange with planetesimals, Neptune might have migrated outward to the current position, and captured many Kuiper belt objects (KBOs) into resonances. We set up a semi-analytic model to simulate the outward…

Earth and Planetary Astrophysics · Physics 2013-08-07 Li-Chin Yeh , Ing-Guey Jiang , Li-Yong Zhou

Near Earth Objects (NEOs) are a transient population of small bodies with orbits near or in the terrestrial planet region. They represent a mid-stage in the dynamical cycle of asteroids and comets, which starts with their removal from the…

The outer giant planets, Uranus and Neptune, pose a challenge to theories of planet formation. They exist in a region of the Solar System where long dynamical timescales and a low primordial density of material would have conspired to make…

Astrophysics · Physics 2009-11-07 Edward W. Thommes , Martin J. Duncan , Harold F. Levison

The debiased absolute-magnitude and orbit distributions as well as source regions for near-Earth objects (NEOs) provide a fundamental frame of reference for studies of individual NEOs and more complex population-level questions. We present…

Among the outer solar system minor planet orbits there is an observed gap in perihelion between roughly 50 and 65 au at eccentricities $e\gtrsim0.65$. Through a suite of observational simulations, we show that the gap arises from two…

Earth and Planetary Astrophysics · Physics 2021-07-15 William J. Oldroyd , Chadwick A. Trujillo

The planets of our solar system formed from a gas-dust disk. However, there are some properties of the solar system that are peculiar in this context. First, the cumulative mass of all objects beyond Neptune (TNOs) is only a fraction of…

Astrophysics of Galaxies · Physics 2018-08-15 Susanne Pfalzner , Asmita Bhandare , Kirsten Vincke , Pedro Lacerda
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